Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4450114 | Process for production of sulfuric acid semiesters | Taira Fujita, Hiroyuki Nakagawa, Mikio Sugihara, Katuhiko Okamoto | 1984-05-22 |
| 4351765 | Process for the production of compounds having in the molecule at least one .beta.-sulfatoethyl-sulfone group and at least one sulfonic acid group | Taira Fujita, Hiroyuki Nakagawa, Mikio Sugihara, Katuhiko Okamoto | 1982-09-28 |